(Hong Kong)
Product Summary
The LTC1503CMS8-1.8#TR is a switched capacitor step-down DC/DC converter that produces a regulated output from a 2.4V to 6V input. The part uses switched capacitor fractional conversion to achieve high efficiency over the entire input range. No inductors are required. Internal circuitry controls the step-down conversion ratio to optimize efficiency as the input voltage and load conditions vary. Typical efficiency is 25% higher than that of a low dropout (LDO) linear regulator. The applications of the LTC1503CMS8-1.8#TR include Cellular Phones, Handheld Computers, Smart Card Readers, Low Power DSP Supplies, Portable Electronic Equipment, Handheld Medical Instruments.
Parametrics
LTC1503CMS8-1.8#TR absolute maximum ratings: (1)VIN, C1+, C1–, C2+, C2– to GND: -0.3V to 6.5V; (2)SHDN/SS to GND: -0.3V to (VIN + 0.3V); (3)VOUT Short-Circuit Duration: Indefinite; (4)Commercial Temperature Range: -40℃ to 85℃; (5)VIN, C1+, C1–, C2+, C2– to GND: -0.3V to 6.5V; (6)SHDN/SS to GND: -0.3V to (VIN + 0.3V); (7)VOUT Short-Circuit Duration: Indefinite; (8)Commercial Temperature Range: -40℃ to 85℃.
Features
LTC1503CMS8-1.8#TR features: (1)Input Voltage Range: 2.4V to 6V; (2)Fixed Output Voltages: 1.8V ±4%, 2V ±4%; (3)Output Current: Up to 100mA; (4)No Inductors; (5)Typical Efficiency 25% Higher than LDOs; (6)Low Operating Current: 25mA; (7)Low Shutdown Current: 5mA; (8)600kHz Switching Frequency; (9)Shutdown Disconnects Load from VIN; (10)Soft-Start Limits Inrush Current at Turn-On; (11)Short-Circuit and Overtemperature Protected; (12)Available in 8-Pin MSOP and SO Packages.
Diagrams
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 LTC1503CMS8-1.8#TR |
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IC REG BUCK SWITCHED CAP 8MSOP |
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LTC1503CMS8-1.8#TRPBF |
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IC REG BUCK SWITCHED CAP 8MSOP |
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